httpclient例子

package com.httpclient;

import java.io.IOException;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.Header;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class Dbsight {
   
    //登录的地址
    static final String LOGIN_ADDR  = "http://192.168.0.240:8080/dbsight/login.do";
    //scheduleAJob.do的地址
    static final String COMMIT_ADDR = "http://192.168.0.240:8080/dbsight/scheduleAJob.do?indexName=develop_test&cmd=stopIndexing%20updateIndex%20mergeTempIndexes%20updateTempIndex%20mergeIndexesIfNeeded%20updateIndex%20unlockStoppedIndex%20pruneBeforeIndexing%20updateIndex%20createPeriodTable%20unlockStoppedIndex%20maybeBuildSynonyms%20incrementalIndexing%20mergeTempIndexes%20updateTempIndex%20mergeIndexesIfNeeded%20updateIndex%20buildDictionaryIfNeeded%20ping-a-url&text=Incremental%20Indexing";
    //最后执行页的地址
    static final String LOG_ADDR    = "http://192.168.0.240:8080/dbsight/showIndexLog.do?indexName=develop_test";
    //登录密码
    static final String LOGIN_PASSWORD = "chinese";
    //是否记住密码
    static final String LOGIN_REMEBERME = "true";
    private HttpClient client = new HttpClient();
   
    public Dbsight(){

       //登录的参数
        NameValuePair[] loginPair = {
            new NameValuePair("operation", "login"),
            new NameValuePair("password", LOGIN_PASSWORD),
            new NameValuePair("remeberme", LOGIN_REMEBERME)};
        //登录method
        PostMethod loginMethod = this.getPostMethod(LOGIN_ADDR, loginPair);
        loginMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,new DefaultHttpMethodRetryHandler());
       
        try {
            client.executeMethod(loginMethod);
            //执行状态
            int loginStatusCode = loginMethod.getStatusCode();
            //System.out.println(" loginbody :"+loginMethod.getResponseBodyAsString());
            //登录方法结束
            loginMethod.releaseConnection();
            //跳转执行
            if (loginStatusCode == HttpStatus.SC_MOVED_PERMANENTLY || loginStatusCode == HttpStatus.SC_MOVED_TEMPORARILY  || loginStatusCode  ==  HttpStatus.SC_SEE_OTHER || loginStatusCode == HttpStatus.SC_TEMPORARY_REDIRECT) {
                Header loginLocationHeader = loginMethod.getResponseHeader("location");
                String location = null;
                if(loginLocationHeader != null){
                    location = loginLocationHeader.getValue();
               
                }
                //登录成功
            }else if(loginStatusCode == 200){
                //创建scheduleAJob.do的method
                GetMethod commitMethod = this.getGetMethod(COMMIT_ADDR);
               
                commitMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,new DefaultHttpMethodRetryHandler());
                client.executeMethod(commitMethod);
                    //执行结果
                int commitStatusCode = loginMethod.getStatusCode();
                //System.out.println(" commitbody: "+ commitMethod.getResponseBodyAsString());
                commitMethod.releaseConnection();
                System.out.println(" commitStatusCode is : "+ commitStatusCode);
                //执行成功
                if(commitStatusCode == 200){
                    //执行页MOTHOD
                    GetMethod logMethod = this.getGetMethod(LOG_ADDR);
                    logMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,new DefaultHttpMethodRetryHandler());
                    //执行
                    client.executeMethod(logMethod);
                    //执行结果代码
                    int logStatusCode = logMethod.getStatusCode();
                    System.out.println(" logStatusCode is : "+ logStatusCode);
                    System.out.println(" logbody is : "+ logMethod.getResponseBodyAsString());
                    logMethod.releaseConnection();
                   
                }
               
            }
        } catch (HttpException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
       
       
    }

    public HttpClient getClient() {
        return client;
    }

    public void setClient(HttpClient client) {
        this.client = client;
    }

 

    /**
     * 使用 GET 方式提交数据
     *@return
     */



    private GetMethod getGetMethod(String URL){
        return new GetMethod(URL);
     }

     /**
      * 使用 POST 方式提交数据
      *@return
      */


     private PostMethod getPostMethod(String URL,NameValuePair[] pair ){
         PostMethod post = new PostMethod(URL );
         post.setRequestBody( pair);
         return post;
      }
   
    public static void main(String args[]){
        new Dbsight();
    }
}